Improvement in cleaning, hulling, and grinding grain



2 Sheets-Sheet 2. .i-. COLE.

' Cleaning. Hulling-aind` Grinding Grain.

No. 38.948. l Patentedune 23.v i863.

N. PEYERS. Pmwmnognpnnr. wnshngwn, n. c,

.NTTED STATES PATENT TFICE.

' ,nIIIANUnL coLn, on DRYDEN, New Tonk.

Specification forming part of Letters PatentNO. 38,948, dated lJune 23, 1863.

To all whom it may concern:

Be it known that I, EMANUEL COLE, of Dryden, in the county of Tompkins and State ofN ew York, have invented a certain new and useful Machine for Cleaning, Hulling, and Grinding Grain 5 and I do hereby declare that the following is a full and exact description of the same,prepared with a view to the obtaining of Letters Patent of the United States therefor, sufiiciently in detail to be fully understood by skillful millers and those familiar with the construction and use of the machines which this most nearly resembles.

The accompanying drawings form a part of this specification.

Figure lis a vertical section through the entire novel portion of the mechanism on the line S S in Fig. 2.v Fig. 2 is a plan view of the novel portions of the machine.

Both Views include so much of the formerlyknown parts and easily-understood arrangements as is necessary to readily understand the novel arrangements; and similar letters of reference indicate like parts in both the figures.

My machine employs, or may employ, common millstones of ordinary'size and material, adjusting them close for grinding and more distant for cleaning grain. It may be used with advantage for either purpose exclusively, and may be made of any size desired. I have introduced it with great success in several mills in my vicinity, where it has been used almost exclusively for considerable periods in cleaning buckwheat. I have had many years experience as a miller, and have never known a machine nearly its. equal for this purpose. rlhe blow,77 by which is meant the cap on the large end of this grain, is completely removed by this machine with great rapidity. I

The advantages pertaining to the machine in this and the other uses will readily appear, and I will set forth definitely those depending on some of the specific features which I claim as novel.

To enable others skilled in the art to make and use my invention, I will proceed to dewhich support the same, and are adapted to run on the ways a cI.

' G C are hooks adapted to secure the frame Bin a fixed position on A or to release it and allow it to be moved back and forward on the track a a at pleasure.

D is the upper stone. It is mounted on the frameB by means of pivots E E, and is steadied and secured by screws F F, arranged as represented. When thestoneD is to be dressed, it is run out on the track a 'a so as to be clear of the lower stone, and the screws FF are turned so as to withdraw them. The stoneis then easily turned over by the strength of one man, and, having secured it in an inverted position by means of the screws F F, or otherwise, it is dressed as desired, and a repitition of the several operations in the reverse direction restores the stone again to its place, where it may be secured by the hooks C.

Gr is a removable portion of the curb adapted to properly cover and inclose the parts when ready for use. y

Any ordinary means of supplying or feeding the material to the machme may be employed, arranged in any of the approved styles. y

H is the lower stone. It is provided with stout sockets and bearings h h in its lower face, which rest fairly upon and are adapted to be turned by a rigid spider or casting, I, which is carried on the upright shaft J. This latter is turned by a stout belt, j, and lightered or elevated and lowered by a lever, L, like mills in common use. The spider I is provided with tenons i i on its upper face, which fIt into the sockets h.

K is a rigid cross-beam, which forms the upper bearing of the shaft J.

M is the fixed portion of the curb. Its upper portion corresponds to the ordinary curb of a grist-mill', but its lower end is open, and is continued downward and tapered in the manner represented. The material, aft-er being treated between the stones Dv and H, escapes freely around the whole in the space between the lower` stone vand the-curb, and falls freely down into the contracted neck or spout m, being gathered by the conical portion of the curb without allowing any accumulation at any point and without 'a possibility of the material being restrained in any manner. The material, after falling through the spout m, is treated properly to remove the dust and bad grains when used as a huller and cleaner. This may be done either by -the means indicated in the drawings,or otherwise, as may be preferred.

The crossbeam or bridge-tree K may be made of cast-iron, very narrow if preferred, or if of wood may be made of a triangular section, presenting an acute angle upward to avoid any lodgment of grain or other material thereon, as faintly indicated in dotted lines in the gnres.

All the several parts may vary much in form without materially aifecting the success of the invention, but I have represented forms which were adopted on a small model. With the ordinary modications familiar to mech anics, I believe these will be found the best in practice.

The advantages due to several features of my invention may be separately enumerated as follows:

First. By the employment of my pivots E E and screws F F, arranged, as represented, relatively to the secondary frame B B and top stone, D, and suitable means of removing the whole from the lower stone, I am able to adjust and turn the said upper stone, D, with great facility, and to use it either face downward at pleasure. I can, by reason of this, use the two faces of the ston-e alternately, either with the same or a different style of dress, and by consuming the two faces of the stone instead of one, I can use the stone not only more conveniently and effectively when necessary to run for a long period without stopping to dress or when grinding or cleaning different kinds of grain or treating occasioually material requiring a diiferentdressas, fir example, hullin g rice-but can use the stone more completely because a given consumption of the stone by being distributed from two faces instead of, as usual, from one face, causes a less derangement in the relations of the stones and of the parts supporti 1g and adjusting the same.

Second. By the employment of the wheels b b and track a a, arranged, as represented, relatively to the secondary frame B and its connection, I am enabled to remove and return the stone D without lifting it and Without delay, and with a necessity for no additional help to that usually required about the machine. This feature of my invention also affords a more firm and rigid support for the upper stone, D, than any of the swinging devices in general use, and by this quality in the support allows me to adjust my stones with great accuracy and certainty and without any danger of the stones actually coming into contact on one side while the other side is out of contact. It also renders less disturbance of the means of supplying material neccessary, and avoids the expense and loss of room due to the levers and machinery ordinarily employed to remove stones vof this character. Considered in connection with the feature just above explained, it forms the most economical and convenient means of holding, moving, and turning stones which has ever yet been devised for this purpose.

Third. By the extending of the curb M downward and arranging it as represented relatively to the spout m, I am enabled to avoid all accumulation of material, and to be certain of a perfectly free discharge around the entire periphery of the stones, so that the machine is free the momentthefeedis stopped. By this feature, in connection with the one last described, I avoid `all accumulation of material at the eye or in the curb, and consequently all the filth, heating, and souring due thereto. I am also, by virtue of this and the other improvements, enabled to operate with much less power than usual and at a very rapid rate without involving difficulty, and can perform the several functions of grinding, cleaning, and hulling by the same pieces of mechanism and with very simple adjustments, and can change from cleaning to grinding, and from cleaning or grinding one material to cleaning or grinding a different material, or a material in a different condition, without causing one to partake of the nature of the other to so great an extent as with ordinary means. The slide N will be readily understood as allowing of ready access of the hand to oil the upper bearing of the shaft J. Suitable provision for preventing the oil from effecting or being eii'ected by the flour or other material flying within the curb, may be made by any ofthe approved constructions of tight oil-cups.

Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. The means, substantially as herein described, by which the stone D is secured in the removable frame B, for the purpose set forth.

` 2. The means, substantially as herein described, by which the top stone, D, and its connections are supported in a xed plane and removed and replaced for the purposes and with the advantages specified.

3. The construction and arrangement of the curb M, substantially as and for the purpose herein described.

EMANUEL COLE. Witnesses C. P. SNIDER, A. H. MOORE. 

